The mission of Pacific Air Forces is to provide ready air and space power to promote U.S. interests in the Asia-Pacific region during peacetime, through crisis, and in war. PACAF organizes, trains, and equips the 45,000 Total Force personnel of the Regular Air Force, the Air Force Reserve and the Air National Guard with the tools necessary to support the Commander of United States Indo-Pacific Command. PACAF comprises three numbered Air Forces, nine main bases and nearly 375 aircraft.

The command's area of responsibility extends from the west coast of the United States to the east coast of Asia and from the Arctic to the Antarctic, more than 100,000,000 square miles (260,000,000 km2). The area is home to nearly two billion people who live in 44 countries.

With the end of World War II in September 1945, the USAAF found its units deployed throughout the Pacific, from Hawaii to India, from Japan to Australia, and based on a hundred island airstrips, along with bases in China and Burma. A realignment of these forces was needed by the USAAF to better organize its forces in the Pacific for peacetime. On 6 December 1945, Far East Air Forces was redesignated Pacific Air Command, United States Army (PACUSA), and its Air Forces were redeployed as follows:

Reassigned to PACUSA 6 December 1945; provided a strategic deterrent for the entire Western Pacific region

With this realignment and reassignment of forces, PACUSA controlled and commanded all United States Army Air Forces in the Far East and Southwest Pacific, and all air forces were placed under one Air Force commander for the first time.[13][14][15]

The major mission of PACUSA in the postwar years (1946–1950) was occupation duty in Japan and the demilitarization of the Japanese society in conjunction with the United States Army. In addition, PACUSA helped to support atomic bomb testing in the Pacific Proving Grounds beginning with the Operation Crossroads test on Bikini Atoll in the Marshall Islands in 1946.

FEAF Emblem, 1954

With the impending establishment of the United States Air Force as an independent service later that year, PACUSA was redesignated Far East Air Forces (FEAF) on 1 January 1947. On that same date, Seventh Air Force in Hawaii was inactivated with its organization absorbed by HQ, FEAF.[16]

Despite the post-World War II demobilization of United States armed forces, the U.S. Air Force still had substantial forces in the Pacific to oppose the North Korean military. When the North Koreans crossed the 38th parallel on 25 June 1950, FEAF consisted of the following primary units*:[18][19][20]

* Elements of the 2d and 3d Air Rescue squadrons, attached to FEAF by the Military Air Transport Service (MATS), were located at various bases where they could best perform emergency rescue services with their SB-17 Flying Fortresses. The 512th and 514th Weather Reconnaissance Squadrons of the 2143d Air Weather Wing were located at Yokota Air Base, Japan, and Andersen Air Force Base, Guam. All USAF units engaged in combat during the Korean War were under the overall command of Far East Air Forces.** The 31st Photo Reconnaissance Squadron was a Strategic Air Command unit, attached to FEAF for operations. On 29 June 1950, the unit began flying combat missions over the Korean Peninsula in their RB-29 Superfortresses to provide FEAF Bomber Command with target and bomb-damage assessment photography.

In response to the threat posed by the introduction of Soviet-built (and often Soviet-manned) MiG-15 jet fighters into the Korean People's Air Force (KPAF), USAF F-80 and F-82 units were later re-equipped with the North American F-86 Sabre jet fighter between December 1951 and Spring 1953.[23] Eventually, these USAF F-86 units would establish a kill ratio of 10:1 versus their KPAF adversaries. During the Korean War (1950–1953), alongside the U.S. Navy and small allied contingents, FEAF's Fifth Air Force bore the brunt of the coalition air combat operations.

With the 1953 Korean Armistice, the deployed SAC and TAC units to Japan and Korea were gradually withdrawn, and returned to the United States. Twentieth Air Force was inactivated on 1 March 1955, leaving FEAF with two Air Forces, the Fifth in Japan and the Thirteenth in the Philippines, although units were maintained on Guam and Okinawa.[18]

On 1 July 1954, Pacific Air Force was activated at Hickam Air Force Base, Territory of Hawaii, and assigned to Far East Air Forces (FEAF), which was headquartered in Japan. Pacific Air Force at Hickam functioned primarily as the Air Force staff component and planning element of U.S. Pacific Command. On 1 July 1956, Pacific Air Force was redesignated Pacific Air Force/FEAF (Rear). Headquarters FEAF began preparations to move from Japan to Hawaii. Smith assumed additional responsibilities as deputy commander, Far East Air Forces. This was followed on 1 July 1957 with United States Far East Air Forces being redesignated as Pacific Air Forces (PACAF) and transferring its headquarters to Hickam AFB, Territory of Hawaii.[18]

As the American effort in Southeast Asia increased, TAC permanently reassigned entire wings of aircraft from CONUS bases to PACAF and increased the number of rotated tactical fighter and reconnaissance squadrons on rotating Temporary Duty (TDY) commitments to PACAF bases in Vietnam and Thailand, along with units to South Korea, Japan and the Philippines. On a daily basis, flight crews would hurl themselves and their planes at targets across the area of operations over the skies of North and South Vietnam.[26]

At the height of the Vietnam War (1968), PACAF commanded forces at major air bases in the following countries:[27]

Japan (Fifth Air Force)

South Korea (Fifth Air Force)

Philippines (Thirteenth Air Force)

Taiwan (Thirteenth Air Force)

South Vietnam (Seventh Air Force)

Thailand (Seventh/Thirteenth Air Force)

In 1962, PACAF activated the 2d Air Division to be the main warfighting organization in South Vietnam. As the conflict escalated, Seventh Air Force was activated on 1 April 1966, replacing 2d Air Force. PACAF units in Thailand were under the command of Thirteenth Air Force beginning in 1964, then in 1973 a joint Seventh/Thirteenth Air Force headquarters was established in Bangkok to direct PACAF forces in Thailand operating in Indochina (until 15 August 1973), and Thailand until the final USAF withdrawal from Southeast Asia in the beginning of 1976.[27][28]

By 1970, direct PACAF involvement the war was winding down as the conflict was being increasingly turned over to the South Vietnamese under the process known as Vietnamization. Units from the Republic of Vietnam Air Force (VNAF) took on more and more combat to defend their nation while PACAF tactical air strength was being reduced as several air bases were turned over to the VNAF. Combat aircraft of PACAF flew their last strikes in Cambodia 15 August 1973, writing the final chapter to the long and costly history of active American participation in the Indochina War. The Paris Peace Accords of 1973 ended PACAF's use of South Vietnamese bases, and by 1976 bases in Thailand were turned over to the Thai government. In 1979, normalization of relations with the People's Republic of China also led to the withdrawal of PACAF personnel from Ching Chuan Kang Air Base, Republic of China (Taiwan).[27]

The post-Vietnam era found the command focusing on improving its readiness and PACAF's organizational structure saw a marked period of rapid and extensive changes. Inactivated at the end of the Vietnam War in 1975, Seventh Air Force was reactivated at Osan Air Base, South Korea in 1986 to take over Fifth Air Force activities in South Korea. Also in 1986, the Goldwater-Nichols Act reworked the overall command structure of the United States military. With the creation of Unified Combatant Commands (UCC) organized either on a geographical basis (known as "Area of Responsibility", AOR) or on a functional basis, Pacific Air Forces became a part of the United States Pacific Command (USPACOM).

In 1992, changes took place in force structure within PACAF as the command assumed control of theater-based tactical airlift wings, theater C-130 aircraft and crews, and associated theater C-130 support following the disestablishment of Military Airlift Command (MAC). PACAF also gained control of all operational support aircraft and all aeromedical airlift assets in the Pacific previously under the cognizance of MAC.[18] With the concurrent disestablishment of Strategic Air Command (SAC) and Tactical Air Command (TAC) the same year, PACAF also assumed responsibility for all active KC-135 aerial refueling aircraft based in Hawaii and Japan, "gaining command" responsibility for all Air National Guard KC-135 aircraft in Hawaii and Alaska, and all E-3 AWACS aircraft in Japan and Alaska.

Throughout its history PACAF has played a vital role in world events. In addition to its key combat role in World War II, Korea and Vietnam, PACAF units fought in Desert Storm in 1991 and continued to deploy to Saudi Arabia, Turkey and Italy for peacekeeping operations such as Operation Southern Watch and Operation Northern Watch. PACAF provided its expertise, aircraft, personnel and equipment to facilitate the new Expeditionary Air Force, especially as it applied to successful airbridge operations spanning the vast Pacific Ocean. Following the 11 September 2001 terrorist attacks on the United States, PACAF again demonstrated its intrepid spirit through its units deployed in support of Operation Noble Eagle, Operation Enduring Freedom and, in 2003, Operation Iraqi Freedom.[18]

Since 1944, the command has also participated in more than 140 humanitarian operations within its area of responsibility and beyond. In these operations PACAF people quickly and efficiently airlifted food, medicine and other supplies to areas devastated by storms, floods, earthquakes, volcanoes and other natural disasters.[18]

As PACAF entered the second decade of the 21st century, expanding theater challenges and simultaneous resource constraints have forced continuing innovation and adjustments by PACAF in order to meet mission requirements. Previously assigned four numbered air forces, PACAF downscoped to three numbered air forces in September 2012, inactivating 13th Air Force and merging its functions into PACAF. Base consolidations and infrastructure limitations have also required the Air Force and PACAF to developed increased capability while striving to remain within budgetary resource constraints. One such example has been the evaluation of alternate runway(s)/divert field(s) in the Marianas since late 2011 as a backup to Andersen AFB on Guam, a process that remains on-going as of 2014.[29][30]

^ abFutrell, Robert F. with the assistance of Blumenson, Martin (1991) The United States Air Force in Southeast Asia: The Advisory Years to 1965, Office Of Air Force History, United States Air Forceriority in Korea. Annapolis: U.S. Naval Institute Press, 2005. ISBN1-59114-933-9.

^ abcSchlight, John (1996) A War Too Long: The History of the USAF in Southeast Asia, 1961–1975, Office Of Air Force History, United States Air Force

^Glasser, Jeffrey D. (1998). The Secret Vietnam War: The United States Air Force in Thailand, 1961–1975. McFarland & Company. ISBN0-7864-0084-6.

This article includes content from Pacific Air Forces website, which as a work of the U.S. Government is presumed to be a public domain resource. That information was supplemented by:

Endicott, Judy G. (1999) Active Air Force wings as of 1 October 1995; USAF active flying, space, and missile squadrons as of 1 October 1995. Maxwell AFB, Alabama: Office of Air Force History. CD-ROM

Fletcher, Harry R. (1989) Air Force Bases Volume II, Active Air Force Bases outside the United States of America on 17 September 1982. Maxwell AFB, Alabama: Office of Air Force History. ISBN0-912799-53-6